Addition Of Fugitive Material Patents (Class 419/36)
  • Patent number: 10213834
    Abstract: A method of fabricating an article for magnetic heat exchange, is provided which comprises plastically deforming a composite body comprising a binder having a glass transition temperature TG and a powder comprising a magnetocalorically active phase or elements in amounts suitable to produce a magnetocalorically active phase such that at least one dimension of the composite body' changes in length by at least 10%.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 26, 2019
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Hugo Abdiel Vieyra Villegas, Matthias Katter, Barcza Alexander
  • Patent number: 10072563
    Abstract: An exhaust-gas turbocharger (1) having a turbine (2) which is provided with an adjustable turbine geometry and/or with a wastegate; and having an actuator (11) which is connected by means of a coupling rod (14; 14?; 14?) to the adjustable turbine geometry and/or to the wastegate. The coupling rod (14; 14?; 14?) is connected at its end regions at one side to the actuator (11) and at the other side to an adjusting shaft arrangement of the variable turbine geometry and/or of the wastegate. The coupling rod (14; 14?; 14?) is formed as an MIM component.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 11, 2018
    Assignee: BorgWarner Inc.
    Inventors: Volker Paul, Nico Kanoffsky
  • Patent number: 9844811
    Abstract: Provided is a raw material powder for powder metallurgy, capable of preventing stains, surface defects and decarburization of a sintered body, improving strength and density thereof. The raw material powder for powder metallurgy is for use in the production of a sintered body that is sintered at a temperature of not lower than 500° C., composed of a mixture of a metal powder and a lubricant, in which the lubricant is melamine cyanurate or terephthalic acid. Alternatively, the raw material powder for powder metallurgy is for use in the production of a sintered body that is sintered at a temperature of not lower than 500° C, composed of a mixture of a metal powder, a first lubricant and a second lubricant, in which the first lubricant is melamine cyanurate or terephthalic acid, while the second lubricant is preferably erucic acid amide or stearic acid amide.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: December 19, 2017
    Assignee: DIAMET CORPORATION
    Inventors: Takashi Nakai, Kinya Kawase
  • Patent number: 9713586
    Abstract: An oral care composition comprising a diluted sodium calcium alginate gel, wherein the oral care composition is a toothpaste, a gel, a mouthwash or a mouthrinse.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 25, 2017
    Assignee: Colgate-Palmolive Company
    Inventors: Manying Shi, Xiaojing Lv, Rolando Plata, Zhuoxing Zhang
  • Patent number: 9617394
    Abstract: Particles for forming interconnected or continuous layers of material are, in some embodiments, composed of a Material A, a first central material comprising at least one meltable, softenable, or sinterable substance, and Material B, a second substantially thin material applied to the outer surface of said first material which is thermally or mechanically breachable.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 11, 2017
    Assignee: AeonClad Coatings, LLC
    Inventors: Robert Scott Evans, Daniel John Verdell Pulsipher, John Stockton
  • Patent number: 9475945
    Abstract: An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: October 25, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Pankaj B. Trivedi, Pankaj K. Mehrotra, Neal S. Myers
  • Patent number: 9469543
    Abstract: Refractory metal and refractory metal carbide nanoparticle mixtures and methods for making the same are provided. The nanoparticle mixtures can be painted onto a surface to be coated and heated at low temperatures to form a gas-tight coating. The low temperature formation of refractory metal and refractory metal carbide coatings allows these coatings to be provided on surfaces that would otherwise be uncoatable or very difficult to coat, whether because they are carbon-based materials (e.g., graphite, carbon/carbon composites) or temperature sensitive materials (e.g., materials that would melt, oxidize, or otherwise not withstand temperatures above 800° C.), or because the high aspect ratio of the surface would prevent other coating methods from being effective (e.g., the inner surfaces of tubes and nozzles). The nanoparticle mixtures can also be disposed in a mold and sintered to form fully dense components.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: October 18, 2016
    Assignee: Lockheed Martin Corporation
    Inventor: Alfred A. Zinn
  • Patent number: 9336922
    Abstract: A fabrication method of thermoelectric materials using core-shell structured nano-particles and thermoelectric materials fabricated by the same are provided. The method includes preparing core-shell structured nano-particles having thermoelectric elements coated on the surface thereof (step 1); adding and mixing the prepared core-shell structured nano-particles of step 1, bismuth (Bi) salts, tellurium (Te) salts and a surfactant in a solvent (step 2); adding and dispersing a reducing agent in the mixture of step (step 3); and heating the mixture of step 3 in which reducing agent is added and dispersed (step 4). According to the present invention, thermoelectric materials, nano-phase is homogeneously dispersed inside of thermoelectric grain boundary, can be fabricated and if the fabricated materials are used after sintering and bulking, the thermoelectric materials are maintained in a state that the nano-particles remain in dispersed phase even after sintering.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: May 10, 2016
    Assignee: Korea Institute of Machinery and Materials
    Inventors: Kyung Tae Kim, Gook Hyun Ha
  • Patent number: 9308584
    Abstract: Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e.g., metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 12, 2016
    Assignee: MOTT CORPORATION
    Inventors: Derek Burgess, Wayne F. White, Alfred M. Romano, Todd W. Pflugbeil, Richard D. Balazy, Kenneth L. Rubow, John E. Rosenberger
  • Patent number: 9289946
    Abstract: Three-dimensional printing system with automated part removal. In one embodiment, the system includes a printing surface on which a part is made and a printing device supported for controlled movement with respect to the printing surface to print the part on the printing surface. A blade is supported for motion across the printing surface to release the part from the printing surface. The present printing system according to the invention requires fewer user steps than known in the prior art.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: March 22, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Alfonso Alexander Perez, Christopher Michael Haid, Forrest W. Pieper, Mateo Pena Doll
  • Patent number: 9054477
    Abstract: Frames for plug connectors capable of being a reduced size may include features to support contacts, house circuitry for coupling with the contacts, facilitate the flow of molten material during the molding of the frame, and allow for ease of insertion and removal of the plug connector to and from a corresponding receptacle connector. For example, a frame may include ledges, interlocks and rounded and tapered openings. Methods for manufacturing the frame are also provided.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 9, 2015
    Assignee: Apple Inc.
    Inventors: Michael Brickner, Wayne Cowan, Brett A. Rosenthal, Richard Heley, Mathias W. Schmidt
  • Publication number: 20150125334
    Abstract: A process and materials are disclosed to enable the formation of metal powder-polymer/plastic preform articles by three dimensional printing a green state article, debinding the polymer/plastic from the metal powder, and sintering the article to a final shape.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: American Hakko Products, Inc.
    Inventors: Takashi Uetani, Chris Stuber
  • Patent number: 8951465
    Abstract: A method for preparing an implant having a porous metal component. A loose powder mixture including a biocompatible metal powder and a spacing agent is prepared and compressed onto a metal base. After being compressed, the spacing agent is removed, thereby forming a compact including a porous metal structure pressed on the metal base. The compact is sintered, forming a subassembly, which is aligned with a metal substrate portion of an implant. A metallurgical bonding process, such as diffusion bonding, is performed at the interface of the subassembly and the metal substrate to form an implant having a porous metal component.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: February 10, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventor: Gautam Gupta
  • Patent number: 8916090
    Abstract: The invention provides an endoscope having a lens holder, wherein the lens holder comprises a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which comprises the steps of molding a metal blank by a MIM process, wherein the metal blank is “near net shape” and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: December 23, 2014
    Assignee: Karl Storz Imaging, Inc.
    Inventor: Kin Ming Kwan
  • Patent number: 8911662
    Abstract: A powder for use in the powder metallurgical manufacture of components is provided. Particularly the subject matter concerns an iron or iron based powder intended for the powder metallurgical manufacturing of components. It is especially suitable for manufacturing of components wherein self-lubricating properties are desired. The subject matter further relates to a method of manufacturing a component from said powder and an accordingly produced component. A diffusion-bonded powder comprising iron or iron-based particles, and particles diffusion-bonded to the iron or iron-based particles is provided. The said particles diffusion-bonded to the iron or iron-based particles may comprise an alloy of Cu and 5% to 15% by weight of Sn. A component is provided which is at least partly formed from such a diffusion-bonded powder.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: December 16, 2014
    Assignee: Hoganas AB
    Inventor: Mats Larsson
  • Patent number: 8911663
    Abstract: The present invention relates to ferromagnetic powders with an electrically insulating layer on iron particles intended for the manufacture of components having improved soft magnetic properties at low and medium frequencies. The invention comprises an iron powder coated with a dielectric insulating layer comprising boron bearing compounds to form an insulated ferromagnetic powder. The present invention also relates to a method of making these insulated ferromagnetic powders. The present invention further relates to a method of synthesizing a product made from insulated ferromagnetic powders via a post-heat treatment at a moderate temperature (300° C. to 700° C.), to form a glass-like coating which acts as an electrical insulator. A preferred embodiment of the present invention is obtained when small amounts of alkali bearing compounds are added to the precursors to modify the coating chemistry and significantly increase the electrical resistivity after heat treatment.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: December 16, 2014
    Assignee: Quebec Metal Powders, Ltd.
    Inventors: Guillem Vachon, Claude Gelinas
  • Patent number: 8871142
    Abstract: Provided are methods for processing a green body that includes compacted metal powder, comprising impacting the green body with a particulate material for a time and under conditions effective to displace a portion of the metal powder from the green body. The present methods can be used to prepare green bodies that have “roughened” surfaces and that can be used to make orthopedic implants displaying low movement relative to bone when installed in situ, which corresponds to higher stability upon implantation and decreases the time required for biological fixation of the implant. Also provided are implants comprising a metallic matrix, and methods comprising surgically installing an implant prepared from a “surface roughened” green body in accordance with the present invention.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: October 28, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Bryan Smith, Jeffrey A. Rybolt, Derek Hengda Liu, Andrew James Martin
  • Patent number: 8858675
    Abstract: A powder metallurgical combination is provided comprising an iron-based powder A comprising core particles of iron to which core particles nickel is diffusion alloyed and wherein said nickel diffusion alloyed to said core particles comprises 4-7% (preferably 4.5-6%) by weight of said iron-based powder A, and a powder B substantially consisting of particles of pure iron. Further a method is provided for preparing a powder metallurgical combination.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: October 14, 2014
    Assignee: Hoganas AB (Publ)
    Inventor: Mats Larsson
  • Patent number: 8852498
    Abstract: A process for fabricating hollow metal shells such as Be or Al filled with a selected gas such as D or T. An organic preform is coated with a slurry of organic binder and metal powder of Be or Al. The coated preform is heated to remove the preform and any organics to form a hollow shell which is then fired at an elevated temperature in a gas so as to seal the shell and capture the gas inside the sealed shell.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: October 7, 2014
    Assignee: Imaging Systems Technology, Inc.
    Inventor: Carol Ann Wedding
  • Patent number: 8840832
    Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 23, 2014
    Assignee: Accellent Inc.
    Inventors: Mark W. Broadley, James Alan Sago, John Eckert, Jeffrey M. Farina
  • Patent number: 8834785
    Abstract: A method for producing a metal article according to one embodiment may involve the steps of: Providing a composite metal powder including a substantially homogeneous dispersion of molybdenum and molybdenum disulfide sub-particles that are fused together to form individual particles of the composite metal powder; and compressing the molybdenum/molybdenum disulfide composite metal powder under sufficient pressure to cause the mixture to behave as a nearly solid mass.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: September 16, 2014
    Assignee: Climax Engineered Materials, LLC
    Inventors: Matthew C. Shaw, Carl V. Cox, Yakov Epshteyn
  • Patent number: 8828312
    Abstract: Forming a wear- and corrosion-resistant coating on an industrial component such as a chemical processing or nuclear power valve component by applying a cobalt-based dilution buffer layer to an iron-based substrate by slurry coating, and then applying by welding a cobalt-based build-up layer over the cobalt-based dilution buffer layer. An industrial component having a dilution buffer layer and a welding build-up layer thereover.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: September 9, 2014
    Assignee: Kennametal Inc.
    Inventors: Matthew Yao, Rachel Collier, Danie DeWet
  • Publication number: 20140227124
    Abstract: A ferrous alloy for powder injection molding is provided. The ferrous alloy for powder injection molding includes iron (Fe) at 52.59-78.15 wt %, chromium (Cr) at 16.45-37.34 wt %, boron (B) at 3.42-7.76 wt %, silicon (Si) at 1.64-1.92 wt %, sulfur (S) at 0-0.21 wt %, carbon (C) at 0.16-0.18 wt %, and other inevitable impurities.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 14, 2014
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Sung Hak Lee, Byeong-Joo Lee, Jeonghyeon Do, Yang Su Shin
  • Patent number: 8790571
    Abstract: A method for preparing an article is disclosed. The method comprises compacting a mixture of a first pre-alloyed powder and a lubricant to thereby form a green part having a green strength sufficient to permit mechanical handling; applying a slurry to a surface of the green part to thereby form a slurry coated green part, wherein the slurry comprises a second pre-alloyed powder, a binder, and a solvent; and heating the coated green part to a temperature below a solidus temperature of the first pre-alloyed powder and between a solidus temperature and a liquidus temperature of the second pre-alloyed powder to thereby solid state sinter the first pre-alloyed powder into a sintered core and to liquid state sinter the second pre-alloyed powder into a continuous alloy coating over the sintered core.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: July 29, 2014
    Assignee: Kennametal Inc.
    Inventors: Abdelhakim Belhadjhamida, Donald Williams, John Davies
  • Patent number: 8747516
    Abstract: Flowability-improving particles are adhered to surfaces of iron powder through a binder to provide an iron-based powder for powder metallurgy which has excellent flowability and which is capable of uniformly filling a thin-walled cavity and compaction with high performance of ejection force.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: June 10, 2014
    Assignee: JFE Steel Corporation
    Inventors: Tomoshige Ono, Shigeru Unami, Takashi Kawano, Yukiko Ozaki
  • Patent number: 8734715
    Abstract: A method for preparing a porous metal article using a powder metallurgy forming process is provided which eliminates the conventional steps associated with removing residual carbon. The method uses a feedstock that includes a ferrous metal powder and a polycarbonate binder. The polycarbonate binder can be removed by thermal decomposition after the metal article is formed without leaving a carbon residue.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: May 27, 2014
    Assignee: UT-Battelle, LLC
    Inventor: Curtis Jack Miller
  • Patent number: 8734561
    Abstract: A bonded metallurgical powder composition including: an iron-based powder having a weight average particle size in the range of 20-60 ?m, in an amount of at least 80 percent by weight of the composition, graphite powder in an amount between 0.15-1.0 percent by weight of the composition, a binding agent in an amount between 0.05-2.0 percent by weight of the composition, a flow agent in an amount between 0.001-0.2 percent by weight of the composition; wherein the graphite powder is bound to the iron-based powder particles by means of the binding agent, and wherein the powder composition has an apparent density of at least 3.10 g/cm3 and a hall flow rate of at most 30 s/50 g. Also, a method for producing a sintered component with improved strength from the inventive composition, as well as to a heat treated sintered component produced according to said method.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: May 27, 2014
    Assignee: Hoganas AB (Pub)
    Inventor: Mats Larsson
  • Publication number: 20130343946
    Abstract: A method for manufacturing a sintered rare-earth magnet having a magnetic anisotropy, in which a very active powder having a small grain size can be safely used in a low-oxidized state. A fine powder as a material of the sintered rare-earth magnet having a magnetic anisotropy is loaded into a mold until its density reaches a predetermined level. Then, in a magnetic orientation section, the fine powder is oriented by a pulsed magnetic field. Subsequently, the fine powder is not compressed but immediately sintered in a sintering furnace. A multi-cavity mold for manufacturing a sintered rare-earth magnet having an industrially important shape, such as a plate magnet or an arched plate magnet, may be used.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicant: INTERMETALLICS CO., LTD.
    Inventors: Masato SAGAWA, Hiroshi NAGATA, Osamu ITATANI
  • Publication number: 20130285778
    Abstract: There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of preventing deterioration of magnet properties. In the method, magnet material is milled into magnet powder. Next, a mixture is prepared by mixing the magnet powder and a binder made of long-chain hydrocarbon and/or of a polymer or a copolymer consisting of monomers having no oxygen atoms. Next, the mixture is formed into a sheet-like shape so as to obtain a green sheet. After that, the green sheet is held for a predetermined length of time at binder decomposition temperature in a non-oxidizing atmosphere so as to remove the binder by causing depolymerization reaction or the like to the binder, which turns into monomer. The green sheet from which the binder has been removed is sintered by raising temperature up to sintering temperature. Thereby a permanent magnet 1 is obtained.
    Type: Application
    Filed: March 15, 2012
    Publication date: October 31, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Keisuke Taihaku, Katsuya Kume, Toshiaki Okuno, Izumi Ozeki, Tomohiro Omure, Takashi Ozaki
  • Patent number: 8551395
    Abstract: A method for preparing a metal-based part, the method comprising applying a slurry to a surface of a temporary substrate to thereby form a slurry-coated temporary substrate, wherein the slurry comprises a Co-, Ni-, or Fe-based metal-based material, a binder, and a solvent; drying the slurry-coated temporary substrate to remove the solvent and to thereby form a coating layer having green strength; heating the coating layer to remove the binder; heating the coating layer to sinter the metal-based material into a continuous metal alloy layer; and separating the substrate from the coating layer. A powder metallurgy preform comprising a powder metallurgy green coating on a preform substrate.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: October 8, 2013
    Assignee: Kennametal Inc.
    Inventors: Abdelhakim Belhadjhamida, Donald Williams, John Davies
  • Patent number: 8524147
    Abstract: A process for producing powder green compacts includes centrifugally compacting a slip containing a material powder, a binder resin and a dispersion medium in a mold, into a compact containing the material powder and the binder resin. A process for producing sintered compacts includes sintering the green compact. A powder green compact contains a material powder and a binder resin, the binder resin being present between particles of the material powder and binding the material particles. A sintered compact is obtained by sintering the green compact.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: September 3, 2013
    Assignees: Hiroshima University, Alloy Industries Co., Ltd.
    Inventors: Hiroyuki Suzuki, Yoshinobu Shimoitani
  • Patent number: 8475709
    Abstract: A method for producing a composite part is provided. The method comprises compacting a powder composition comprising a lubricant into a compacted body; heating the compacted body to a temperature above the vaporization temperature of the lubricant such that the lubricant is substantially removed from the compacted body; subjecting the obtained heat treated compacted body to a liquid polymer composite comprising nanometer-sized and/or micrometer-sized reinforcement structures; and solidifying the heat treated compacted body comprising liquid polymer composite by drying and/or by at least one curing treatment.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: July 2, 2013
    Assignee: Hoganas AB (Publ)
    Inventors: Pontus Bergmark, Björn Skärman
  • Patent number: 8425652
    Abstract: There is disclosed a method of making a ready to press cemented carbide powder with low compaction pressure suitable for the production of submicron cemented carbide by means of powder metallurgical techniques milling, pressing and sintering. The method comprises using from about 1 to about 3 wt-% pressing agent with the following composition, less than about 90 wt-% PEG and from about 10 to about 75 wt-% of blends of high molecular (C12-<C20) saturated or unsaturated fatty acids, or salts thereof containing at least one element of Al, Ba, Ca, Co, Cr, Mg, N, Na, V, Zn. Preferably the grain size of the cemented carbide powder is submicron. In a preferred embodiment the method includes a dry pre-milling of the hard constituents mainly WC-powder for about 2-45 hours in ball mills with cemented carbide milling bodies or using other suitable dry milling techniques prior to a wet milling step. The invention also relates to the powder obtained by the method.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: April 23, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventors: Ove Alm, Alistair Grearson, Susanne Norgren
  • Patent number: 8383033
    Abstract: A method for preparing an implant having a porous metal component. A loose powder mixture including a biocompatible metal powder and a spacing agent is prepared and compressed onto a metal base. After being compressed, the spacing agent is removed, thereby forming a compact including a porous metal structure pressed on the metal base. The compact is sintered, forming a subassembly, which is aligned with a metal substrate portion of an implant. A metallurgical bonding process, such as diffusion bonding, is performed at the interface of the subassembly and the metal substrate to form an implant having a porous metal component.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 26, 2013
    Assignee: Biomet Manufacturing Corp.
    Inventor: Gautam Gupta
  • Patent number: 8361380
    Abstract: A method for providing a porous metal implant. A mixture of biocompatible metal, a spacing agent, and a binder is provided. The mixture is formed into a shape and the spacing agent is removed to form a plurality of pores in the implant. A shaped porous metal is also provided.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: January 29, 2013
    Assignee: Biomet Manufacturing Corp.
    Inventors: Ned M. Hamman, James B. Fleming, Isaac Janson, Mukesh Kumar, Jason D. Meridew, Elizabeth A. Schlueter
  • Publication number: 20120228361
    Abstract: An ultrasonic welding tool fabricated of powder metal material includes a body and a welding tip extending axially from the body to a working end. The powder metal material can be ferrous-based and admixed with additives, such as alumina, carbide, ferro-molybdenum, ferro-nickel, chrome or tribaloy. An exposed surface of the welding tip can comprise Fe3O4 oxides. The tool is compacted to the desired shape and sintered. The body can include a different second material compacted separately from the welding tip and then joined to the tip and sintered.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Inventor: Denis CHRISTOPHERSON, JR.
  • Patent number: 8246902
    Abstract: A method for manufacturing a plate-type heat pipe includes providing a mold including a first cavity and a plurality of second cavities and depositing cores into the mold. Each core has a first portion in the first cavity and a second portion in a corresponding second cavity. First and second metal powder are filled into the mold. The cores are then removed from the mold to form a green piece by the first and second metal powder, which has first and second chambers therein. The green piece is sintered, whereby the first metal powder forms an outer wall of the heat pipe and the second metal powder forms a wick structure. The heat pipe has a heat absorbing portion having the first chambers and fins having the second chambers communicating with the first chambers.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: August 21, 2012
    Assignee: Foxconn Technology Co., Ltd.
    Inventor: Chuen-Shu Hou
  • Patent number: 8206645
    Abstract: A method for preparing a filler-metal weld rod of a filler-metal composition includes the steps of centerless grinding the filler metal weld rod of a forced mixture of a mass of titanium aluminide intermetallic alloy powder that was used to form the weld rod, and hot isostatic pressing the filler-metal weld rod at a temperature greater than 2150° F., at a pressure between about 15,000 pounds per square inch and about 25,000 pounds per square inch and for a time of about 1 to 5 hours, thereby increasing the relative density to between about 98% and about 99%.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: June 26, 2012
    Assignee: General Electric Company
    Inventor: Thomas Joseph Kelly
  • Publication number: 20120065739
    Abstract: In one embodiment, the present invention may be a method of making a porous biocompatible metal article by combining a metal powder with a homogenizing aid to form metal granules, including blending the metal granules and an extractable particulate to form a composite, forming the composite into a green article, removing the extractable particulate from the green article to form a metal matrix and pore structure, and sintering the metal matrix and pore structure. Furthermore the present invention may include a second homogenizing aid combined with the extractable particulate. The present invention also includes shaping the metal matrix and pore structure with or without the use of a binder.
    Type: Application
    Filed: October 11, 2011
    Publication date: March 15, 2012
    Applicant: PRAXIS POWDER TECHNOLOGY, INC.
    Inventor: Joseph A. Grohowski, JR.
  • Patent number: 8083831
    Abstract: The present invention relates to a lightweight, anti-scratch and fracture resistant material for use in manufacture of jewelry prepared by sintering a powered mixture consisting essentially of 20% by weight of titanium carbide, 25% by weight of tungsten carbide, 35% by weight of titanium nitride, and balance being a binder consisting essentially of nickel, molybdenum and cobalt.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: December 27, 2011
    Assignee: BTR Limited
    Inventor: Zhijian Xia
  • Patent number: 8062582
    Abstract: The present invention provides metal powder compositions for pressed powder metallurgy and methods of forming metal parts using the metal powder compositions. In each embodiment of the invention, the outer surface of primary metal particles in the metal powder composition is chemically cleaned to remove oxides in situ, which provides ideal conditions for achieving near full density metal parts when the metal powder compositions are sintered.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: November 22, 2011
    Assignee: Apex Advanced Technologies, LLC
    Inventors: Dennis L. Hammond, Richard Phillips
  • Patent number: 8025710
    Abstract: Provided are an ancillary material, used for shape processing, which is capable of shortening a processing time, avoiding a reduction in quality of a shape provided to a workpiece material, and allowing a relatively low manufacturing cost; a processing method using the ancillary material; and a method of manufacturing the ancillary material. The tungsten alloy grains (1) comprise: tungsten of greater than or equal to 80% by mass and less than or equal to 98% by mass; nickel; at least one kind of metal selected from the group consisting of iron, copper, and cobalt; and an inevitable impurity, a maximum diameter thereof is greater than or equal to 0.1 mm and less than or equal to 5.00 mm, and a specific surface area thereof is less than or equal to 0.02 m2/g. The tungsten alloy grains (1, 10), the workpiece material (30), an abrasive (20) are blended in a container (100) and the container is rotated, thereby processing the shape of the workpiece material (30).
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: September 27, 2011
    Assignee: A.L.M.T. Corp.
    Inventors: Shinji Kikuhara, Hitoshi Inoue, Noboru Uenishi, Satoshi Umemoto
  • Patent number: 8021604
    Abstract: A filler-metal weld rod of a filler-metal composition is prepared by providing a mass of metallic powders, mixing the metallic powders with a temporary thermoplastic binder to form an injection-moldable mixture, and thereafter injection molding the injection-moldable mixture at an injection-molding temperature above the thermoplastic temperature of the thermoplastic binder to form an injection-molded rod. Any excess thermoplastic binder is removed from the injection-molded rod, and the injection-molded rod is thereafter sintered to form a filler-metal weld rod, with the temporary thermoplastic binder removed in the step of sintering.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: September 20, 2011
    Assignee: General Electric Company
    Inventor: Thomas Joseph Kelly
  • Publication number: 20110206944
    Abstract: The present invention relates to a process for producing shaped articles composed of refractory metals.
    Type: Application
    Filed: June 18, 2007
    Publication date: August 25, 2011
    Applicant: H.C. Starck GmbH
    Inventors: Henning Uhlenhut, Uwe Blümling, Klaus Andersson, Bernd Döbling, Michael Svec, Karl-Hermann Buchner
  • Patent number: 7993577
    Abstract: The invention relates to manufacture of titanium articles from sintered powders. The cost-effective initial powder: 10-50 wt % of titanium powder having ?500 microns in particle size manufactured from underseparated titanium sponge comprising ?2 wt % of chlorine and ?2 wt % of magnesium; 10-90 wt % of a mixture of two hydrogenated powders A and B containing different amount of hydrogen; 0-90 wt % of standard grade refined titanium powder, and/or 5-50 wt % of alloying metal powders. The method includes: mixing powders, compacting the blend to density at least 60% of the theoretical density, crushing titanium hydride powders into fine fragments at pressure of 400-960 MPa, chemical cleaning and refining titanium powders by heating to 300-900° C. and holding for ?30 minutes, heating in vacuum at 1000-1350° C., holding for ?30 minutes, and cooling.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: August 9, 2011
    Assignee: Advance Materials Products, Inc.
    Inventors: Volodymyr A. Duz, Orest M. Ivasishin, Vladimir S. Moxson, Dmitro G. Savvakin, Vladislav V. Telin
  • Patent number: 7968207
    Abstract: The invention relates to a method of producing and joining superalloy balls by means of brazing and to objects produced with such joints. According to one aspect of the invention, an alloy powder covered with a brazing solder is bonded to a spherical core and subsequently transformed into a continuous alloy layer by means of brazing.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: June 28, 2011
    Assignee: ONERA (Office National d'Etudes et de Recherches Aerospatiales)
    Inventors: Myriam Douin, Marie-Pierre Bacos, Alexandra Boyer, Aurélie Gregoire, Pierre Josso, Sébastien Mercier, Ariel Moriel, Jason Nadler, Serge Naveos, Catherine Rio
  • Patent number: 7959706
    Abstract: A sintering compound containing a sinterable powder and a binder removable in a debinding step is injected into a metal mold set provided with a sintering compound injecting mold, in a sintering compound molding step (S104). An add-on forming compound which becomes removable or separable from the sintering compound injection molded body in the debinding step or the sintering step is injected into the metal mold set provided with an add-on mold in an add-on forming step (S102). The sintering compound injection molded body and the add-on are formed integrally with each other in the metal mold set. The integral formation of the add-on and the sintering compound injection molded body enables to prevent damage during release from the mold and make easy to handle the injection molded body.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: June 14, 2011
    Assignee: Taisei Kogyo, Ltd.
    Inventor: Shigeo Tanaka
  • Publication number: 20110110811
    Abstract: High pressure nozzle and method for the manufacture of a high pressure nozzle. The high pressure nozzle has a jet director located within a supply channel leading to a discharge opening. In an area directly surrounding the supply channel median longitudinal axis, the jet director has a free flow cross-section.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 12, 2011
    Inventors: Albert Fecht, Juergen Frick, Boris Schmidt
  • Patent number: 7931855
    Abstract: A method of reducing the oxygen content of a powder is provided. A canister is prepared with a getter, filled with the powder to be densified, sealed and evacuated. The canister is subjected to a hydrogen atmosphere at an elevated temperature whereby hydrogen diffuses into the canister through the walls thereof. The hydrogen forms moisture when reacted with the oxygen of the powder and the moisture in the reacted with the getter in order to remove oxygen from the powder to the getter. The atmosphere outside the canister is then altered to an inert atmosphere or vacuum, whereby hydrogen diffuses out of the canister. A dense body having a controlled amount of oxygen can thereafter be produced by conventional powder metallurgy techniques.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: April 26, 2011
    Inventors: Roger Berglund, Hans Eriksson, Johan Sundstrom, Per Arvidsson
  • Patent number: 7892599
    Abstract: Methods for functionalizing the surface of nanomaterials to improve processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: February 22, 2011
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Tapesh Yadav, Karl Pfaffenbach